5205764521 has 8 divisors (see below), whose sum is σ = 5240682720. Its totient is φ = 5170954272.

The previous prime is 5205764507. The next prime is 5205764537. The reversal of 5205764521 is 1254675025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5205764521 - 2²³ = 5197375913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5205764561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70966 + ... + 124288.

It is an arithmetic number, because the mean of its divisors is an integer number (655085340).

Almost surely, 2^5205764521 is an apocalyptic number.

It is an amenable number.

5205764521 is a deficient number, since it is larger than the sum of its proper divisors (34918199).

5205764521 is a wasteful number, since it uses less digits than its factorization.

5205764521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53975.

The product of its (nonzero) digits is 84000, while the sum is 37.

The square root of 5205764521 is about 72150.9841998015. The cubic root of 5205764521 is about 1733.1181606133.

The spelling of 5205764521 in words is "five billion, two hundred five million, seven hundred sixty-four thousand, five hundred twenty-one".